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- /*
- * YASM associated data storage (libyasm internal use)
- *
- * Copyright (C) 2003-2007 Peter Johnson
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND OTHER CONTRIBUTORS ``AS IS''
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR OTHER CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
- #include "util.h"
- #include "coretype.h"
- #include "assocdat.h"
- typedef struct assoc_data_item {
- const yasm_assoc_data_callback *callback;
- void *data;
- } assoc_data_item;
- struct yasm__assoc_data {
- assoc_data_item *vector;
- size_t size;
- size_t alloc;
- };
- yasm__assoc_data *
- yasm__assoc_data_create(void)
- {
- yasm__assoc_data *assoc_data = yasm_xmalloc(sizeof(yasm__assoc_data));
- assoc_data->size = 0;
- assoc_data->alloc = 2;
- assoc_data->vector = yasm_xmalloc(assoc_data->alloc *
- sizeof(assoc_data_item));
- return assoc_data;
- }
- void *
- yasm__assoc_data_get(yasm__assoc_data *assoc_data,
- const yasm_assoc_data_callback *callback)
- {
- size_t i;
- if (!assoc_data)
- return NULL;
- for (i=0; i<assoc_data->size; i++) {
- if (assoc_data->vector[i].callback == callback)
- return assoc_data->vector[i].data;
- }
- return NULL;
- }
- yasm__assoc_data *
- yasm__assoc_data_add(yasm__assoc_data *assoc_data_arg,
- const yasm_assoc_data_callback *callback, void *data)
- {
- yasm__assoc_data *assoc_data;
- assoc_data_item *item = NULL;
- size_t i;
- /* Create a new assoc_data if necessary */
- if (assoc_data_arg)
- assoc_data = assoc_data_arg;
- else
- assoc_data = yasm__assoc_data_create();
- /* See if there's already assocated data for this callback */
- for (i=0; i<assoc_data->size; i++) {
- if (assoc_data->vector[i].callback == callback) {
- item = &assoc_data->vector[i];
- break;
- }
- }
- /* No? Then append a new one */
- if (!item) {
- assoc_data->size++;
- if (assoc_data->size > assoc_data->alloc) {
- assoc_data->alloc *= 2;
- assoc_data->vector =
- yasm_xrealloc(assoc_data->vector,
- assoc_data->alloc * sizeof(assoc_data_item));
- }
- item = &assoc_data->vector[assoc_data->size-1];
- item->callback = callback;
- item->data = NULL;
- }
- /* Delete existing data (if any) */
- if (item->data && item->data != data)
- item->callback->destroy(item->data);
- item->data = data;
- return assoc_data;
- }
- void
- yasm__assoc_data_destroy(yasm__assoc_data *assoc_data)
- {
- size_t i;
- if (!assoc_data)
- return;
- for (i=0; i<assoc_data->size; i++)
- assoc_data->vector[i].callback->destroy(assoc_data->vector[i].data);
- yasm_xfree(assoc_data->vector);
- yasm_xfree(assoc_data);
- }
- void
- yasm__assoc_data_print(const yasm__assoc_data *assoc_data, FILE *f,
- int indent_level)
- {
- /*TODO*/
- }
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